Drier for briquettes and other agglomerates



Feb. 12, 1929. 1,701,873

M. CROSSMAN DRIER FOR BRIQUETTES AND OTHER AGGLOMERATES Filed March 17, 1925 2 Sheets-Sheet l o f (x IVE].

'l'ES FRANCIS M. GROSSMAN', OF NEW YORK, Ni Y.

DRIER FOR BRIQUETTES AND OTHER AGGLOMEBATES.

Application filed March 1'7, 1925. Serial No; 16,183.

This invention relates toln'iquette driers. I have found in practice that the driers now in use leave much to be desired in the way of efficiently drying the briquettes. These driers are expensive to build and complicated and costly to operate. lt is an object of the 'iJLGSQZlb invention to overcome these objections by providing a drier that is simple in construction, economical to operate and efficient in drying the briquettes.

Another feature of the invention is the provision of means for regulatingthe entrance of the drying gases into the drier to prevent'the' possibility of the drying chambers becoming too hot with resultant damage to the briquettes.

Another feature is the provision of devices for permitting the entrance of cool air into the drying chambers.

Still another feature is the provision of easily operated unloading means for unloading in case of emer ency or for cleansing purposes.

The invention accordingly consists in the features ofconstruction, combination of elements and arrangement of parts which will be exemplified in the construction hereinafter set forth and the scope of the application of which will be indicated in the following claims.

in the accompanying drawings forming a part of this specification wherein similar reference characters refer to similar parts throughout the several views,

Figure 1 is a central vertical sectional vie'w of my improved drier, and

Figure 2 is a plan view thereof.

Referring to the drawings, illustrating the preferred embodiment of my invention, the drier proper comprises a metal drum 1 formed preferably of steel, which drum is mounted solidly on. a steel structure 2. Said steel structure 2 is supported by four concrete piers 3, leaving considerable space between the floor of the drum and the floor or other surface upon which the piers 3 rest.

As will be seen from Figure 1, the drum 1 formed with a plurality of compartments 4-, through which the briquettes pass will be explained hereinafter.' Passing through the center of the drum 1 is a shaft the bottom end thereof resting in a hearing block 6, said shaft being adapted to revolve in its bearings. Fixed to the shaft 5 in each of the compartments a are radial arms 7, which arms are adapted to move the briquettes in the compartments 4. The driving means for rotating the shaft 5 are illustrated as a worm. 8, meshing with a. gear 9 mounted on a shaft carrying a pinion 10, which pinion 10 drives a gear 11 secured on the shaft 5. Of course, any other desirable driving means may be used.

The floor of each compartment 4 is provided with an opening 11 through which the briquettes pass to the compartment 4: immediately below, it being understood that the said openings 11 7 are arranged in staggered relationship so that no two of them are in alignment and so that the briquettes are successively carried through each compartment 4 until they charge opening in the drum 1.

The driving gears for 'the shaft 5 are driven by the motor 11 pulley 11 and belt 11 which are operatively connected thereto as will be seen from Figure 2.

The drum 1 issurrounded by a space or chamber 12, which chamber 12 is in com" munication with the passageway 12* leading from a furnace 13 to said chamber 12, by means of ducts 14: and 15. It will be understood that the hot gases pass from said 'furnace 13 through said passageway 12 and ducts 14 and 15 to the chamber 12 for drying the briquettes in the drum 1. The products of combustion produced by the furnace 13 escape up the stack 16 by means of the duct 17 leading from the furnace to said stack.

In order to regulate the entrance of the hot gases into the chamber 12, at certain points in the ducts 14 and 15 are mounted dampers 18 and 19, respectively.

Formed in the periphery 20 of the drum 1 are rows of holes 21, which holes open into the compartments 4. Arranged directly opposite the ducts 14 and 15 and communicating with the chamber 12 is an outlet duct 22, through which the hot gases pass to a stack 23. 'Mounted in said stack 23 is a damper 24to regulate the discharge of the gases.

Disposed between the drum and the stack 23 and operatively connected to the duct 22 is a fan 25 driven by a motor 25, which fan facilitates the passage of the hot gases.

Surrounding the drum 1 is a cylindrical reach the discasing formed of steel or other suitable ment therewith aredoors 27i Proper insulating material such as brick 28 is used lhe' drum 1 by means of conveye'r 30 shown.

. uponafchute 31, said'material being carried toward the chute 31 in buckets 32 or'other V V carrying members.

for lining the inside of thecasing. v

' Injorder to regulate theiexit of the hot gases from the chamber, 12 to the "discharge (meme, on each side of theio'pening intothe duct 22 is mounted a damper 29. V H p The briquettes or other materialisied to hereas an endless belt. The briquettes on the oonveyer are carried to andd'ischarged Mounted in the shaft 5 adjacentthe top of the drum 1 and adapted to rotate there-1 With are radial arms 33. These arms33 in their turnin movement carr in. the brie quett'es, which slide down-the chute 31. and

through, anopening 34 in the top oflithe drum 1; around-with themnntil said Hbri-V quettesi fall through an opening- 11?"as-explained before. The briquettes are carried a5 all'that it is necessary to do is to shut the toany suitable vehiclefor carrying themathe briquettes becoming cooked or, burned,

"dampers'18and 19 in the ducts l4 15, re-

spectively, open the doors 26' and 27 and turn on the fan 25 andanample supply of cool air will be admitted; Theclosing; of the dampers e29 valso provides an additional i'nean'sior promoting the circulation of the air through the chamber and drum.

In'case it is desiredydueto. cleansing the drier or for some emergency, to empty the briquettes from the drum all that it-is'neces- 'sary to do is to open the doors'26 and 27.

lt'willbe obvious to thoseskilled in the art to which the invention relates that modi ficationsmay be made in details thatwill not depart from rthe spirit of the IIIVGIltlOIL and 1 do not desire to limit myself to such matters otherwise than is necessary owing to the prior state of; theart and the-appended. I claim. I

I claim'zfi In adrier havinga series ofvertical dry ing chambers and a hotlgaschamber surrounding said series 101 Vertical drying chambers, means for the admission. of hot gases andmeans for the exhaust of hot gases and a plurality of 1 doors vertically disposed in the Walls of said series of ertical chambers and. said hot gas chamber; said doors-opening external'ly'eof said apparatus tor Vthe admission of cool air or the unloading or material in saidyertical chambers.

SignedratNew York, in the county of New Yorkand State of NeW'York, this 15th 1 dayofMarch A. D. 1925. a r a a CROSSMANQ 

